Purchased an ALKO 3004 on ebay as wanted to get away from using the snakemaster.
We have a 1997 Elddis EX300, and on taking the hitch off of the caravan, there is only one side bolt, not the two that the ALKO needs, but there is also a bolt that goes from top to bottom.
I would attach a photo, but have never been able to work out how to post photos on here.......
Your Elddis has BPW chassis with the hitch bolt configuration as described. Al-ko hitches usually have vertical bolt hole as well as 2 horizontal to allow fitting to BPW chassis. Does your hitch not have this?